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No. 749,890. PATENTED JAN. 19', 1904. A. WOLPENSBERGER.

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APPLICATION FILED APR. 2. 1903. 7

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No. 749,890. PATENTE'D JAN. 19, 1904 A. WOLPENSBERGBR.

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APPLICATION HLED APR. 2. 1903.

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ARNOLD WOLFENSBERGER, OF WEST HOBOKEN, NEW JERSEY.

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SPECIFICATION forming part of Letters Patent No. 749,890, dated January 19, 1904.

Application filed April 2, 1903. Serial No. 150,692. (No model.)

To 60% whom it may concern:

Be it known that I, ARNOLD WOLFENSBER- GER, a citizen of the United States, residing at West Hoboken, Hudson county, New J ersey, have invented certain new and useful Improvements in Looms, of which the following is a specification.

This invention relates to a loom which is so constructed that it will weave simultaneously two separate fabrics without interference. and that the operator may freely watch and repair the threads of both fabrics.

In the accompanying drawings, Figure 1 is a front elevation of a loom embodying my invention; Fig. 2, a side elevation thereof;

Fig. 3, a detail of the mechanism for operating the picker-sticks; Fig. 4:, a plan, partly in section, of the left-hand side of the upper shuttle-race; Fig. 5, a front View thereof; Fig. 6, a vertical section on line 6 6, Fig. a; Fig. 7, a plan of the left-hand end of the upper shuttle-race; and Fig. 8, a vertical crosssection through part of the lay on line 8 8, Fig. l.

The letter represents the frame of a loom. b is the lay, and 0 represents the picker-sticks. The lay Z) is provided with two shuttle-races A B, arranged vertically above one another and permitting the simultaneous weaving of two separate fabrics. The lay is provided with a reed 6, extending back of both shuttle-races. In conformity with the two shuttle-races the lay is furnished with four shuttle-boxes b 6 one box being arranged at each end of each of the races. The picker-sticks c are actuated in such a manner that they both swing simultaneously inwardly or outwardly and that they will have resumedtheir outward position before the shuttles d ande have arrived at the ends of theirraces. While the upper shuttle 01 is thrown along the race A in one direction, the lower shuttle e is thrown along the lower race B in the opposite direction, so that the work of each picker-stick at each stroke remains the same as in an ordinary loom and that the machine is properly balanced. p

The means shown for operating the pickersticks in the manner described are as follows: The crank-shaft f drives the picking-shaft g ously swing the picker-sticks inward. When the rollers g release the tappets, the pickersticks are simultaneously swung outward by a spring h to carry the links it with them.

t and j are the upper and lower yarn-beams, from which the upper and lower warp-threads pass, respectively, through upper and lower sets of eyes if of the heddles k. The eyes is and k may be formed either on the same heddles or on separate heddles, the latter construction being shown in the drawings.

The fabric D, woven by the upper shuttle, passes to an upper cloth-beam Z, while the fabric E, woven by the lower shuttle, passes to a lower cloth-beam m. The paths of the two fabrics D and E lie in substantially parallel planes, so that the fabrics may be woven and wound upon the cloth-beams without interference. Each of the cloth-beams is rotated in suitable manner by a separate winding mechanism.

A difficulty in weaving two fabrics above one another in the manner described lies in the fact that the upper shuttle-race is apt to obstruct the view of the threads of the lower fabric and to render access to them difiicult.

It is, however, of importance'that the operathe shuttle race A of two longitudinal rails 10 and p parallel to the lower shuttle-race and separated by a longitudinal slot 19 Both rails 2 p are placed in front of the reed b, Fig. 8, to jointly support the shuttle (Z as the latter moves over the slot 19 The rails p p at the same time form a support in front of the reed for the lower part of the upper shed g, and in this way relieve such shed from the weight of the shuttle, so that the most delicate fabrics may be woven. The rails 9 p are covered with a soft and smooth lining r, into which the warp-threads may sink, so as not to obstruct the shuttle. The rear rail 10 is placed slightly in advance of the reed b, leaving a small slot or space p between the rail and the reed. This space or slot. p permits the reed to vibrate, which vibration is caused by the beating-up action of the reed, without abrading the reed by contact with the rail 9 Through the slot 10 the lower fabric and the lower warp-threads, as well as the lower section of the reed b, may be freely inspected. Should any of the lower warp-threads break, the operator may grasp the torn thread by a hook and pass it forward through the proper slit in the reed. This operation of laying in or joining on a broken warp-thread of the lower shed may be fully controlled by looking downward through the slot 9 so that small repairs can be easily made. Should, however, a larger number of warp-threads break in the lower shed at the same time, so as to necessitate more extensive repairs, it is desirable that the entire upper shuttle-race may be removed from its seat. To this efl ect I so construct the upper shuttle-race that it may be readily connected to or disconnected from the upper shuttle-boxes 12 The race is accordingly made in the form of an oblong rectangular frame, one end of which is illustrated in Fig. 7 This frame carries at each end a forwardly-projecting slide or plate 8, adapted to engage a grooved rail t, projecting forwardly from each upper shuttle-box Z2 and flush with the upper surface of the same. A suitable catch u locks the slide 8 to the rail 25, the drawings showing the catch made with a bent shank which is threaded at one end and provided with a hook at the other end. The

thread engages a tapped perforation of rail 6, while the hook is adapted to enter a suitable eye of plate 8. By turning the catch 14 the hook may be brought into or out of engagement with the eye of plate 8, thus locking or unlocking the upper shuttle race. When larger repairs are to be made, the catches a are opened and the shuttle-race is removed, so as to permit free inspection and access to the lower shed.

It will be seen that by my invention the upper warp-threads are fully supported upon the upper shuttle-race and that such race at the same time permits full inspection and manipulation of the lower warp-threads. this way two perfect fabrics may be simultaneously turned out, thus doubling the output of the loom.

What I claim is 1. In a loom, a lay having a lower shuttlerace and upper longitudinal stationary rails spaced apart to constitute an upper shuttlerace.

2. A loom adapted to weave an upper and lower fabric simultaneously and having a lay provided with a lower shuttle-race for the lower fabric and an upper shuttle-race for the upper fabric, the upper shuttle-race being formed with a longitudinal slot to permit inspection of the lower fabric and to reduce the friction on the shuttle.

3. A loom provided with a lay having a lower shuttle-race, an upper slotted shuttlerace, slides on the upper shuttle-race, and grooved rails on the lay adapted to engage said slides, substantially as specified.

4:. A loom provided with a lay having a reed, a lower shuttlerace,'two upper parallel rails in front of the reed to constitute an upper shuttlerace, slides on the upper shuttle-race, and rails on the lay adapted to engage said slides, substantially as specified.

Signed by me at Jersey City this 30th day of March, 1903.

ARNOLD WOLFENSBERGER. I Witnesses:

CON. F. WEYMAN, HENRY PRUNARET. 

